Sickle-grinder.



lln. 637,946. Patented Nov. 28, |899.

A. L. REINER.

SICKLE GRINDER.

(Application led June l2, 1899.)

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Nn. 637,946. Patentsd Nov. 28, |899.

A. L. REINER.

SIGKLE GRINDER.

(Application filed June 12, 1899.)

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NrTnD STATES PATENT OFFICE.

ANDREW L. REINER, OF BLUE ISLAND, ILLINOIS, ASSIGNOR TO THE EXPORT IMPLEMENT MANUFACTURING COMPANY, OF SAME PLACE.

SICKLE-GRINDER.

SPECIFICATION forming part of Letters Patent No. 637,946, dated November 28, 1899.

Application filed June l2, 1899.

To all whom t Hetty concern:

Be it known that I, ANDREW L. REINER, a citizen of the United States, residing'at Blue Island, in the county of Cook and State of lllinois, have invented a new and useful Improvement in Sickle-Grinders, of which the following is a specification.

.This invention relates to sickle-grinders.

The object of the invention is to provide a ro machine of simple and economical construction and arrangement and easily operated for sharpening sickles, saws, cutters, and the like.

The invention consists,substantially, in the construction, combination, location, and arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawings and finally specifically pointed out in the appended claims.

Referring to the accompanying drawings and to the various views and reference-signs appearing thereon, Figure 1 is a view in side elevation of a machine constructed in accordance with the invention. Fig. 2 is a broken detail view in side elevation, showing the operation ofthe means for vibrating the grindersupporting bracket. Fig. 3 is a plan View of the machine. Fig. 4 is a similar view to Fig. 2, illustrating the operation of the apparatus. Fig. 5 is a broken detail viewin section, showing the construction for dctachably securing the grinder-supporting bracket to the camlever. Fig. 6 is a similar view showing the grinder-supportin g bracket secured against swing.

The same part is designated by the same reference-sign wherever it occurs throughout the several views.

Reference-sign A designates a supportingbase of the machine and, if desired, may be in the form of a casting having formed therewith or carried or otherwise secured thereto a standard B. Mounted on said standard is a casting C, said casting being mounted for vertical adjustment in any suitable manneras, for instance, by the setscrew D, through which said casting is rigidly held when adjusted to the required height. In a hub E, formed on or secured to casting C, is mounted 5o a pin or stud F. The casting Cv is provided with an extension G, in which is journaled a Serial No. 720,154. (No model.)

pin or stud H, carrying on one end afly-wheel J and on the other a pinion K. Referencesign L designates a casting having the arms M N sleeved at one end upon the stud or pin F, and a shaft O is mounted in the other end of said arms, said shaft carrying the grinderwheel P and also a pinion Q. Suitably journaled upon stud or pin F is a main drive or operating gear R, arranged to mesh at sub- 6o stantially diametrically opposite points with the pinions K and Q, whereby when said drive or operating gear is rotated rotation is imparted simultaneously to the shafts H and l O, therebyim partin g rotation to the fiy-wheel J and to the grinder P, the iy-wheel serving not only as a counterbalance, but also to steady the operation of the apparatus.

The arm N of bracket L is provided with an extension S beyond the pin or stud F, 7o which extension is slotted, as indicated at T, and a cooperating curved slot A is formedin casting O. A headed bolt or other securing device B' is arranged to pass through the slots T A to secure or connect the extension S of arm N to the casting C.

Suitably journaled at one end upon the shaft H is a lever C2, said lever carrying a fork or yoke D2 at its other or free end. Suitably mounted on or carried with the hub 8o of main drive or operating gear R is a cam E', arranged to operate in the yoke or fork D2. When suitably adjusted, the head F2 of bolt B is adapted to engage a shoulder or seat in lever C2, as clearly shown in Figs. 3, 4, and 5, the slot T enabling said bolt to be detached from engagement with said seat, as clearly shown in Figs. 2 and 6.

The operation of the apparatus as above described, when the securing-bolt B' is ad- 9o justed into position for engagement with the lever C2, is as follows: When rotation is imparted to the main drive or operating gear R, simultaneous rotation is transmitted through the engagement of said gear with pin-Y 95 ions K and Q, to the balance or fly wheel J and to the grinder B. Rotation is also imparted to the cam E2, which, operating within the fork or yoke D2, imparts an oscillation to lever C2, and by reason of the engagement of ico locking-pin D' with said lever C2 an oscillatory movement or vibration is imparted to bracket L, said bracket oscillating or swinging upon the pin or stud F, thus raising and lowering the grinder P. Thus I secure the effect of a compound lever in effecting the vibration or oscillation of bracket L, with-the accompanying,r advantages of smoothness and easiness of operation, the curved slot A in casting C permitting the vibratory swing of bolt B with reference to said casting. When it is desired to operate the grinderin stationary position-that is, Without vibration of its supporting-braCket-the securing-bolt B is detached from engagement with the leverQ2 and is moved laterally in slots T and A until such disengagement is effected and said bolt occupies the position shown in Figs. 2 and 6, when by tightening up the nut G2 on said bolt the arm N of bracket L is clamped to casting C, thereby holding and maintaining the bracket L, which carries the grinder, in rigid relation with respect to said casting. Thereafter the actuation of main drive-gear R will impart a rotation to the grinder in the manner above described, but the bracket L, carrying the grinder, being detached from the lever C2 no vibration Will be imparted to Hthe grinder supporting bracket, the lever C2 merely vibrating about its journal-support on pin ,H without imparting a vibration to the bracket L. i

If desired, a spring H may be arranged to voppose the swing or movement of bracket L in a direction to advance or move the grinder toward its work during the vibration of said bracket, said spring operating toassist in elevating said bracket upon the return movement thereof.

Many changes and variations in the de-l tails of construction and arrangement would readily suggest themselves to personsskilled in the art and still fall Within the spirit and scope of the invention. I do not desire, therefore, to be limited or restricted to the exact details of construction and arrangement shown and described, but,

Having noW set forth the object and nature of my invention and a construction embody-- ing the principles thereof, what I claim as new and useful and of my own invention, and desire to secure by Letters Patent of the United States, is-

1. In an apparatus of the class described, a frame, a stud mounted therein, a bracket sleeved upon said stud and carrying a grinder, said bracket provided with an extension beyond said stud, a drive-gear journaled uponv said stud, a cam connected with said drivegear, a rock-lever arranged to be vibrated by said cam, and means for connecting said extension to said lever, as and for the purpose set forth.

2. In an apparatus of the class described,

carrying a cam, a rock-lever arranged to be engaged and vibrated by said cam, and a securing-bolt mounted in the slots in said frame and bracket for detachable engagement with said lever, as and for the purpose set forth.

3. In an apparatus of the class described, a frame comprising a base having a standard, a casting mounted on said standard, apin or stud mounted in said casting, a bracket sleeved upon said stud and projecting on one side thereof, a shaft journaled in the free end of said bracket and carrying a pinion and a grinder, said casting provided with an extension on the opposite side of said stud, a shaft mounted in said extension and carrying a pinion and a fly-Wheel, a drive-gear journaled upon said stud and engaging said pinions, and means for connecting said bracketJ to said casting, as and for the purpose set forth.

4. In an apparatus of t-he class described, a frame comprising a base-plate and astandard, a casting mounted on said standard and carrying a stud or pin, a bracket sleeved upon said stud or pin and projecting on one side thereof, ashaft mounted in the free` end of said bracket and carrying a pinion and a grinder, said casting provided with an eXtension projecting on the opposite side of said stud or pin, a shaft journaled in said eXtension and carrying a pinion and a fly-wheel, a drive-gear journaled uponsaid stud or pin and arranged to engage said pinions, a pivotally-mounted lever, a cam 'carried' by said drive-gear and arranged to engage and vibrate said lever, and meansV for detachably connecting said bracket and lever, as and forvthe purpose set forth.

5. In an apparatus of the class described,

a frame, including a casting, a` pin or stud mounted therein, a bracket sleeved upon said stud and carrying a grinder, a` dri ve-gear journaled upon said pin or stud and carrying a cam, a lever pivotally mounted upon said casting and carrying a yoke arranged to receive said cam, whereby said lever is vibrated, said bracket provided With an extension, and means for detachably engaging said extension and lever, as and for the purpose set forth.

In witness whereof I have hereunto set my hand, this 9th day of June, 1899, in the presence of the subscribing Witnesses.

ANDREW L. REINER.

' Witnesses:

E. C. SEMPLE, S. E. DARBY.

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